Nut-lock



G.'VYNE.

NUT LOCK.

Patented Apr. 2, 1895.

(No Model.)

lgazgtn UNITED STATES PATENT OFFICE,

GEBRTT VYNE, OF NORTH VILKESBOROUGH, NORTH CAROLINA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 536,711, dated April 2, 1895.

Application filed February '7, 1895.

T0 aZZ whom it may concern.-

Be it known that I, GERRIT VYNE, a citizen of the United States, residing at North Wilkesborough, in the county of Wilkes and State of NorthOarolina, have invented a new and useful Nut-Lock, of which the following is a specification.

The invention relates to improvements in nut locks.

The object of the present invention is to improve the construction of nut locks, and to provide a simple and inexpensive one adapted to be employed on rail-joints, switches, frogs, and locomotive engines and the like, and capable of securely locking one or more nuts against accidental unscrewing.

Another object of the invention is to enable the nuts to be removed when desired, without ilmpzairing the future usefulness of the nut Furthermore, it is the object of the invention to provide a nut lock which will require no change in the construction of the bolts or nutsusnally employed.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings: Figure 1 is a perspective view of a nut lock constructed in accordance with this invention. Fig. 2 is a horizontal sectional view of the same. Fig. 3 is a vertical sectional view. Fig. t is a longitudinal sectional view of the nut lock, illustrating the manner of looking a single nut.

Like numerals of reference indicate like parts in all the figures of the drawings.

1 designates a plate, which may be a' fishplate, and it is provided with bolt-openings and is disposed horizontally on bolts 2, of a rail-joint. The plate 1 is provided at its upper and lower edges with opposite longitudinal grooves 3, forming upper and lower ribs, 4, substantially T-shaped in cross section and adapted to engage corresponding grooves 5, of a metal box 6, adapted to receive and prevent the rotation of nuts 7.

The box is substantially rectangular in cross-section, and consists of similar sides,

which are arranged at the top and bottom of Serial No. 537,638. (No model.)

the nuts, an outer wall or top 8, and an end 9. The other end of the box is open to permit it to be insertedsendwise on the plat'el to cover the nuts, the closed end of the box forming a stop to prevent further movement than is necessary to properly cover the nuts. The box, whose sides prevent the rotation or unscrewing of the nuts, is detachably locked in position by a substantially L-shaped spring 10, disposed between the nuts of a pair of bolts and provided at one end with an opening receiving one of them and having one arm which'is shortdisposed horizontally and extending outward and engaging detachably an opening 11 of the box. The engaging arm 12 of the L-shaped spring is adapted to be depressed by a nail or any tool that will enter the opening 11, to disengage it from the box to enable the latter to be removed from the plate 1.

The not lock may be applied to any num ber of nuts, as will readily be seen, and when it is employed for locking asingle nut the L- shaped spring is preferably arranged to engage the open end of the box, as illustrated in Fig. 4: of the accompanying drawings.

It will be seen that the nut lock is exceedingly simple and inexpensive in construction, that it is positive and reliable in operation, and that when it is desired to unscrew the nuts for any purpose whatever, the box may be removed without injuring any of the parts. The spring is rigidly secured to one of the bolts by means of asupplemental nut 14:, and a corresponding nut may be arranged on the other bolt, if desired.

Changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

What I claim is-- 1. A nut lock comprising a plate having a bolt-opening and adapted to receive a bolt, an L-shaped spring rigidly secured to the bolt and having one of its arms extending outward, and a rectangular box slidingly arranged on the plate and adapted to cover a. nut and to engage the sides of the same to prevent accidental unscrewing, said box being detachably engaged by the outward-extending arm of the spring, substantially as described.

2. The combination with bolts, nuts arranged thereon, a plate having bolt-openings and arranged on the bolts and provided at its longitudinal edges with ribs, a rectangular box having one end closed and provided at opposite sides with ways adapted to receive the said ribs, whereby the box is slidingly mounted on the plate, said box being provided with an opening, and an L-shaped spring rigidly secured to one of the bolts and having one of its arms extending outward and engaging the opening of the box, substantially as described.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

GERRIT VYNE.

Witnesses:

J. S. FORESTON, LEONARD VYNE. 

